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Revert r80926. It causes loop unswitch assertion and slow down some JIT tests significantly.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81101 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2009-09-06 02:26:10 +00:00
parent 92a97a9166
commit 8f78a58e14
11 changed files with 195 additions and 287 deletions
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10
lib/Analysis/LoopInfo.cpp
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@ -300,9 +300,6 @@ bool Loop::isLoopSimplifyForm() const {
///
void
Loop::getUniqueExitBlocks(SmallVectorImpl<BasicBlock *> &ExitBlocks) const {
assert(isLoopSimplifyForm() &&
"getUniqueExitBlocks assumes the loop is in canonical form!");
// Sort the blocks vector so that we can use binary search to do quick
// lookups.
SmallVector<BasicBlock *, 128> LoopBBs(block_begin(), block_end());
@ -374,13 +371,6 @@ bool LoopInfo::runOnFunction(Function &) {
return false;
}
void LoopInfo::verifyAnalysis() const {
for (iterator I = begin(), E = end(); I != E; ++I) {
assert(!(*I)->getParentLoop() && "Top-level loop has a parent!");
(*I)->verifyLoop();
}
}
void LoopInfo::getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesAll();
AU.addRequired<DominatorTree>();